ARM Architecture Reference Manual ARMv7-A and ARMv7-R edition

Instruction Details
A8.6.99 MOVT
Move Top writes an immediate value to the top halfword of the destination register. It does not affect the
contents of the bottom halfword.
Encoding T1 ARMv6T2, ARMv7
MOVT ,#
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 1 1 1 0 i 1 0 1 1 0 0 imm4 0 imm3 Rd imm8
d = UInt(Rd); imm16 = imm4:i:imm3:imm8;
if BadReg(d) then UNPREDICTABLE;
Encoding A1 ARMv6T2, ARMv7
MOVT ,#
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
cond 0 0 1 1 0 1 0 0 imm4 Rd imm12
d = UInt(Rd); imm16 = imm4:imm12;
if d == 15 then UNPREDICTABLE;
A8-200 Copyright © 1996-1998, 2000, 2004-2008 ARM Limited. All rights reserved. ARM DDI 0406B